Apple CEO Tim Cook thinks that MacOS and iOS perform better in their targeted devices and merging them would cause problems.
“Both are incredible. One of the reasons that both of them are incredible is because we pushed them to do what they do well. And if you begin to merge the two … you begin to make trade-offs and compromises,” he said.
He does acknowledge the fact that one OS for all is more efficient option and he states “This merger thing that some folks are fixated on, I don’t think that’s what users want,”
We know we all will love having one powerfull OS on all are devices and not having to do things differently on different devices, one app will fit all, no compromises just because of different OS. But that’s not what the industry thinks, even Google have stated the same thinking in 2016 saying “we think we’re very fortunate as a company to have two very successful platforms each in their own way and in their own segments. For us, there’s no point in merging them. They’re both successful. We just want to make sure both sides benefit from each other, so that’s why we brought Google Play from Android over to Chrome OS.”
We’ve all seen Microsoft miserably fail trying to make their desktop and mobile OS unified. Probably we’ll have to use different OS for devices for a while untill someone figures out how to merge perfectly .